Question

I am trying to add a record into a table by checking against certain conditions for the existance of record through sql script. I am trying it using Merge Statement. Its not working couldnt tract out where i am going wrong. Can some one help me with this?. Thanks

MERGE Categories As target
    USING (
    SELECT CategoryKey 
    From Categories where CategoryName = 'TestName'
    ) AS source on (source.CategoryKey = target.CategoryKey)
WHEN Not Matched THEN
    INSERT VALUES ('TestName');

Answer 1

This’ll do the job:

MERGE Categories As target
USING (SELECT 'TestName' AS CategoryName) AS source 
    ON (source.CategoryName = target.CategoryName)
WHEN NOT MATCHED THEN
    INSERT (CategoryName) VALUES ('TestName');